http://www.howtogeek.com/196740/how-to-fix-an-ubuntu-system-when-it-wont-boot/
I hope this may help. There's a few things to try for sure. Alex On 15 Jun 2016 2:10 am, "Richard Carter" <carter.r....@gmail.com> wrote: > Hi Folks, > > I'm having a lot of trouble with ubuntu 16.04 on my Intel NUC. It started > with the number 5 being inserted an indefinite number of times in the place > where a password should go in an application. I was able to stop this > infinite loop by restarting. > > A few days later booting would proceed to the point where I had to enter > my password to access the desktop. Instead of there being a space for my > password the word "Retry" appeared and the message "System is booting up. > See pam_nologin (8)" in red letters appeared. This appeared for Ubuntu, > Gnome, Gnome Flashback (Compiz) and Gnome Flashback (Metacity). Here too > rebooting solved the problem----for a few days. > > Now after a few more days, when I turn on the computer I get the Intel > slogan as usual and instruction regarding f2, f7, f10 etc followed by a > black screen with a pulsing short white bar in the top left corner. That's > as far as booting goes! > > I would appreciate advice on how to solve this (last) problem. > > Robin > > > _______________________________________________ > clug-talk mailing list > clug-talk@clug.ca > http://clug.ca/mailman/listinfo/clug-talk_clug.ca > Mailing List Guidelines (http://clug.ca/ml_guidelines.php) > **Please remove these lines when replying >
_______________________________________________ clug-talk mailing list clug-talk@clug.ca http://clug.ca/mailman/listinfo/clug-talk_clug.ca Mailing List Guidelines (http://clug.ca/ml_guidelines.php) **Please remove these lines when replying